Distribution certificates

I have just received an email stating that my iOS Distribution Certificate will expire in 30 days. I looked at my account's certificate page, and I see this certificate there. But I also see two plain Distribution Certificates marked "ALL" for platforms, with identical expiration dates in 2021.

(1) Do I need to renew the iOS Distribution Certificate in order to upload new iOS apps to the App Store?

(2) Why do I have two identical copies of that generic certificate?

The answer to (2) may well be that I screwed up the certificate process, since I'm not entirely sure how it's all supposed to work.
Distribution certificates
 
 
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